已知,A={x|x小于1或x大于2},B={x|4x+p小于0},且A包含B,求实数p的取值范围
题目
已知,A={x|x小于1或x大于2},B={x|4x+p小于0},且A包含B,求实数p的取值范围
答案
4x+p<0 ,
x<-p/4 ,
A包含B ,
-p/4<=1,
p>=-4
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